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Top Cast
Jacob Tremblay
Auggie
Julia Roberts
Isabel
Owen Wilson
Nate
Izabela Vidovic
Via
Noah Jupe
Jack Will
Millie Davis
Summer
Bryce Gheisar
Julian
Mandy Patinkin
Mr. Tushman
Danielle Rose Russell
Miranda
Daveed Diggs
Mr. Browne
Mark Dozlaw
Teenage Doctor
Rukiya Bernard
Nurse
Jennifer March
Neonatologist
Elle McKinnon
Charlotte
Ty Consiglio
Amos
Kyle Breitkopf
Miles
James A Hughes
Henry
J. Douglas Stewart
Darth Sidious
Ali Liebert
Ms. Petosa
Joseph Gordon
Dodgeball Player
Cameron Roberts
Cute Guy
Erika McKitrick
Ella
Nadji Jeter
Justin
Ben Immanuel
Mr. Davenport
Jason McKinnon
School Photographer
Izzy Lieberman
Reid
Hannah Hoberman
Rebecca
Michael Alan Healy
Chewbacca
Sônia Braga
Grans
Nicole Oliver
Jack Will's Mom
Emily Delahunty
Ximena Chin
Lucia Thain
Savanna
Sasha Neuhaus
Maya
Rachel Hayward
Miranda's Mom
Callahan Brebner
Guy on Bus
Caleb Gordon
Our Town Player
Grayson Maxwell Gurnsey
Our Town Player
Emily Giannozio
Our Town Player
Haley Goldin
Our Town Player
Maccie Margaret Chbosky
Via (Age 4)
Victoria V. Cruz
Science Fair Judge
Yan-Kay Crystal Lowe
Julian's Mom
Steve Bacic
Julian's Dad
Jason Tremblay
Camp Counsellor
William Dickinson
Eddie
Emma Tremblay
Michelle
Armen Bagdasarov
Danny
Lidya Jewett
Lina Annan
Kaelyn Breitkopf
Angela
Brayden Snow
Classmate (uncredited)
Andre Robinson
School Kid (uncredited)
Alyssa Andronyk
School Kid (uncredited)
Wilson Chieng
Simon Stimson (uncredited)
Dallas Snow
Classmate (uncredited)
Justin Snow
Classmate (uncredited)
Kayzhia Snow
Classmate (uncredited)
Amber Snow
Classmate Parent (uncredited)
Elayna Sing
Classmate (uncredited)
Ann Evans
Parent (uncredited)
Abigail Friend
Daughter at Coney Island Beach (uncredited)
Razvan Orban
Boy in Red (uncredited)
Kari Staten
Parent (uncredited)